In my Fedora, I couldn't find the file in the mentione= d path. I got it finally from

/var/log/libvirt/qemu/<domain>.log<= /div>

Thanks a lot for the help.

Regards

Toms Varghese

On Mon, Mar 23, 2015 at 6:17 PM, Stefan Hajnoczi <stefanha@g= mail.com> wrote:

On Thu, Mar 19, 2015 at 12:17:29AM +0530, T= oms Varghese wrote:
> Hi all,
>
> I can see some fprintf (stderr, ...) statements in qemu source code. I=
> expect the output to be shown in=C2=A0 the terminal window. I use libv= irt to
> manage my VMs and hence have no idea about the exact qemu command line=
> being used. From the comments in the below post
> http://blog.vmsplice.net/2011/03/how-= to-write-trace-analysis-scripts-for.html
> I found that libvirt is supposed to store the stderr outputs
> in /var/lib/libvirt/qemu/.log file. But I am unable to find any such l= og
> file in /var/lib/libvirt/qemu. Can anyone please tell me how to get th= e
> output of fprintfs in this case as it would help me a lot?
> I am using fedora 21, qemu 2.0.2 and libvirt 1.2.9.2.

The file name is:
/var/lib/libvirt/qemu/<domain>.log

It includes the QEMU command-line as well as stderr output.

Stefan

--001a113cc356673e65051208d96b-- From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43677) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YcbGV-0001ru-88 for qemu-devel@nongnu.org; Mon, 30 Mar 2015 11:06:15 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YcbGP-0003SC-Tw for qemu-devel@nongnu.org; Mon, 30 Mar 2015 11:06:11 -0400 Received: from mail-wg0-x234.google.com ([2a00:1450:400c:c00::234]:33349) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YcbGP-0003S6-O1 for qemu-devel@nongnu.org; Mon, 30 Mar 2015 11:06:05 -0400 Received: by wgbgs4 with SMTP id gs4so87498080wgb.0 for ; Mon, 30 Mar 2015 08:06:05 -0700 (PDT) Date: Mon, 30 Mar 2015 16:05:57 +0100 From: Stefan Hajnoczi Message-ID: <20150330150557.GN25181@stefanha-thinkpad.redhat.com> References: <20150323124716.GC9268@stefanha-thinkpad.redhat.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="b1ERR0FXR0PvNIRE" Content-Disposition: inline In-Reply-To: Subject: Re: [Qemu-devel] Output of fprintf messages in qemu source List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Toms Varghese Cc: qemu-devel@nongnu.org --b1ERR0FXR0PvNIRE Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Mar 24, 2015 at 07:04:59PM +0530, Toms Varghese wrote: > In my Fedora, I couldn't find the file in the mentioned path. I got it > finally from > /var/log/libvirt/qemu/.log Sorry, my mistake. "lib" was a typo. Stefan --b1ERR0FXR0PvNIRE Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJVGWZVAAoJEJykq7OBq3PINloH/3pjAx1fWbDigaCcYfiCVOGL 9E+sJGIFKdyv/oF5hPZJ4zSGb6hpFiOLxaQdGA5DI8W8orN4kM5Fp7QHjDcmT9rU LeSUtv8As1PE9EQ4OpifeC27Qxa+RkVC3duGoGZRXNUx/SkRx3Sf397KO9+jItjr MkkmJzEwU4UVzWetu4JM8GpJu+zEIyDk6WF1r3VXjemejYVBqNK1Bc8YYxERjgCs 49Wz/9kZjSGvJQJSGkLAlyah+TBaGuqJokk/PLbCgTe4sakCtgLOZXGZSL88q/T7 1k7PWmNVi5KCwWypSh93aDnVfF7R3mxBTPpwbD66EBZwi4Wof3YT4eYkkI3DM54= =8NO9 -----END PGP SIGNATURE----- --b1ERR0FXR0PvNIRE--